Mindbomb Monday

In the 1970's the founders of Greenpeace came up with the idea of using electronic media to communicate revolutionary ideas, they came up with the tactic "mindbomb" whereby they would use simple images, delivered by the media, that would "explode in people's minds" and create a new understanding of the world.
On some Mondays I hope to share an image that might be considered a "mindbomb" that could get people thinking throughout the week ahead.  I won't include any words with the image as I hope the image alone will speak for itself.  Sometimes I will use images found online, other times it will be my own photographs and they will reflect something that has spoken to me from the past week.  It might be shocking, inspiring, confrontational or uplifting.
If you would like to join in please share your "mindbomb" in a comment.